CN216869404U - Size detection tool for air pipe flange bolt hole - Google Patents
Size detection tool for air pipe flange bolt hole Download PDFInfo
- Publication number
- CN216869404U CN216869404U CN202220500312.9U CN202220500312U CN216869404U CN 216869404 U CN216869404 U CN 216869404U CN 202220500312 U CN202220500312 U CN 202220500312U CN 216869404 U CN216869404 U CN 216869404U
- Authority
- CN
- China
- Prior art keywords
- bolt hole
- flange bolt
- flange
- aperture
- gauge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model relates to the technical field of ventilation and heat preservation installation of nuclear power stations, in particular to a tool for detecting the size of a bolt hole of an air pipe flange, which is applied to the prefabrication and installation process of the air pipe flange of a nuclear island of a million kilowatt unit, and comprises a ruler body, wherein the ruler body comprises a ruler with the length equal to the maximum distance between adjacent bolt holes and measuring claws arranged at two ends of the ruler, and measuring parts for measuring the distance between the bolt holes of the flange are arranged on the measuring claws; the hole diameter detecting structure is characterized by further comprising a hole diameter go-no-go gauge, wherein the hole diameter go-no-go gauge is a protruding structure arranged on one side face of the ruler body, at least part of the protruding structure can be inserted into a flange bolt hole with the hole diameter allowed to be the minimum hole diameter in a matched mode, and therefore the hole diameter detecting structure of the flange bolt hole is formed. A tuber pipe flange bolt hole size detection instrument can carry out short-term test to flange bolt pitch-row and flange bolt aperture, and it is convenient to use.
Description
Technical Field
The utility model relates to the technical field of ventilation and heat preservation installation of nuclear power stations, in particular to a tool for detecting the size of a bolt hole of an air pipe flange in the process of prefabricating and installing the air pipe flange of a nuclear island of a million kilowatt unit.
Background
During the installation of the AP1000 nuclear power generating unit, each air pipe section and each part are connected and fixed through bolts by the mating flanges, and finally a ventilation system is formed. The air pipe flange manufacturing amount is big, and inspection work is heavy, and the bolt hole position of air pipe flange is arranged at the central line on flange angle steel cross-section different with the bolt hole in other nuclear power and civil engineering, and every specification all has the bolt hole rule bolt hole center that corresponds apart from the distance of flange face angle steel root edge, very easily makes the mistake of experience meaning in the construction, can lead to the quality common fault of the wrong batch drilling of flange appearance of production. In order to ensure that the inspection of the flange bolt pitch is carried out safely and efficiently, a special tool needs to be developed, for example, a tool for detecting the flange bolt pitch of the air pipe disclosed in the Chinese utility model patent with the application number of CN 201920673703.9.
However, it should be noted that: when the bolt holes of the air pipe flange are machined, on one hand, the requirement on hole spacing exists, and accurate alignment of mounting holes is ensured; on the other hand, the requirement of the minimum bolt hole diameter also exists, and if the diameter is too small, the adaptive screws cannot be inserted and installed, so that the products need to be reworked in batches, and time and labor are wasted. The air pipe flange bolt hole distance detection tool can only detect the hole distance and cannot detect the hole diameter.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a tool for detecting the size of a flange bolt hole of an air pipe aiming at the defects in the prior art so as to solve the technical problems in the prior art; a tuber pipe flange bolt hole size detection instrument can carry out short-term test, it is convenient to use to flange bolt pitch-row and flange bolt aperture.
The technical solution of the utility model is as follows:
a tuber pipe flange bolt hole size detection instrument includes:
the ruler body comprises a ruler with the length equal to the maximum distance between adjacent bolt holes and a measuring jaw arranged at one end of the ruler, and a measuring part for measuring the distance between the flange bolt holes is arranged on the measuring jaw; also includes:
the hole diameter go-no-go gauge is a protruding structure arranged on one side face of the ruler body, and at least part of the protruding structure can be fittingly inserted into a flange bolt hole with the hole diameter allowed to be the minimum hole diameter to form a detection structure of the hole diameter of the flange bolt hole.
According to the technical scheme, after the welding forming and the drilling are completed in the flange assembling process, the aperture stop gauge of the detection tool is tried to be inserted into the flange bolt hole to be detected, and if the aperture stop gauge can be inserted into the flange bolt hole to be detected, the aperture of the detected flange bolt hole meets the requirement. Convenient operation, completion bolt aperture's inspection that can be quick, detection efficiency is high.
Preferably, the aperture stop gauge is a cylindrical protruding structure arranged on one side face of the ruler body, and the diameter of the circular face of the aperture stop gauge is equal to the allowable minimum aperture of the flange bolt hole. The shape of the flange bolt hole can be better adapted, and the aperture of the flange bolt hole can be detected more conveniently.
Preferably, one end of the aperture stop gauge, which is close to the ruler body, is sleeved with a flange piece, at least part of the flange piece can be inserted into a flange bolt hole with an aperture allowing the largest aperture in a fitting manner, so that the aperture stop gauge and the flange piece jointly form a detection structure of the aperture of the flange bolt hole. Can detect the minimum diameter of allowwing of flange bolt hole and the maximum diameter of allowwing synchronously, the simple operation, detection efficiency is high.
Preferably, the aperture stop gauge and the flange member are of an integrally formed structure. The detection tool has better integrity and is firmer.
Preferably, the aperture go-no-go gauge is arranged on one side surface of the ruler body with the measuring jaw scales.
As the preferred scheme, the aperture go-no go gauge is connected to the ruler body through a detachable connecting structure. Through changing the not only rule is led to in the aperture of equidimension, can realize that a detection instrument adaptation detects not unidimensional flange bolt hole, the practicality is better, and it is also more convenient to carry.
Preferably, the detachable connecting structure is a threaded connecting structure and comprises a screw part arranged on one side surface of the ruler body and a connecting groove which is arranged on the aperture go-no go gauge and is matched with the screw to form the threaded connecting structure. When convenient to detach, guarantee firm connection structure, and then guarantee the stability of detection operation.
Preferably, the ruler body is provided with an identification scale on one side surface provided with the aperture go-no-go gauge, and the identification scale is the size identification of the minimum aperture allowed.
As the preferred scheme, the tool for detecting the size of the flange bolt hole of the air pipe is designed by integrally forming galvanized steel plates. The air pipe material is consistent with that made of galvanized steel sheets, so that the air pipe detection surface can be better attached to the air pipe detection surface, and the detection is more accurate.
As the preferred scheme, the tool for detecting the size of the flange bolt hole of the air pipe is designed by integrally forming a stainless steel plate. The air pipe material is consistent with that made of the stainless steel plate, so that the air pipe detection surface can be better attached, and the detection is more accurate.
The utility model has the beneficial effects that:
1. the inspection device is convenient to operate, can quickly inspect the pitch and the aperture of the bolt, and is high in detection efficiency.
2. The common quality problems of batch drilling errors which may occur can be avoided.
Further or more specific advantages will be described in the detailed description in connection with the specific embodiments.
Drawings
The utility model is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic front view of the present invention.
Fig. 2 is a first structural diagram of a first embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 4 is a partial cross-sectional view of a second embodiment of the present invention.
Shown in the figure: the ruler comprises a ruler body 1, a straight ruler 101, a measuring jaw 102, a measuring part 1021, a measuring jaw scale 1022, a screw part 103, a mark scale 104, an aperture go-no-go gauge 2, a connecting groove 201 and a flange piece 3.
Detailed Description
The following description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. Furthermore, references to "vertical," "horizontal," "top," "bottom," "front," "back," "upper," "lower," "inner," "outer," and the like in embodiments of the utility model are made based on the orientation or positional relationship shown in FIG. 1, or the orientation or positional relationship in which the product is conventionally used, for convenience in describing and simplifying the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the utility model. It is further noted that, unless expressly stated or limited otherwise, terms such as "mounted," "connected," "secured," and the like are intended to be construed broadly, and thus, for example, "connected" may be fixedly, releasably, or integrally connected; either directly or indirectly through intervening media, or through both elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It should be noted that: the air pipe flange generally comprises four angle steel welded connections, and the group must drill to the flange that the welding was accomplished, and the flange of different specifications corresponds the distance of different bolt hole rule bolt hole centers apart from flange face angle steel root edge, and two adjacent bolt hole intervals must not exceed the adjacent bolt hole maximum distance of regulation, for example 100 mm. Designing different measuring claws according to the requirements of flange bolt hole gauges with different specifications, wherein the length of each measuring claw is designed into the size of the bolt hole gauge; the tool blade length is designed to be the maximum bolt hole pitch dimension. The concrete structure of graduated jaw, chi body can refer to the flue pipe flange bolt pitch-row measuring instrument that chinese utility model patent application No. CN201920673703.9 discloses, and no longer the detail herein. The utility model is provided aiming at the defects of the air pipe flange bolt hole distance detection tool in the using process, and exactly: when the air pipe flange is installed, firstly, bolt holes are required to be aligned accurately, namely, the bolt hole intervals are appropriate; secondly, the hole diameter of the bolt hole is required to be adapted, and if the hole diameter of the bolt hole is slightly larger, the wind pipe flange can be fastened through the combination of a nut, a screw and a gasket; however, if the hole diameter of the bolt hole is too small, the bolt cannot be inserted and matched, and the product needs to be reworked, which wastes time and labor. The above-mentioned instrument can't carry out quick detection to bolt hole aperture, if additionally increase an equipment that is exclusively used in bolt hole aperture detection again, not only can increase the detection cost, still can make the detection instrument become many, increases the carrying of measurement personnel to and the burden of operation. Therefore, the utility model is provided by combining the actual detection requirement of the aperture of the flange bolt hole on the basis of the detection tool for the distance between the holes of the flange bolt of the air pipe. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As a first embodiment of the present invention, referring to fig. 1 to fig. 3, a tool for detecting sizes of flange bolt holes of an air duct includes a ruler body 1, where the ruler body 1 includes a ruler 101 having a length equal to a maximum distance between adjacent bolt holes, and a measuring jaw 102 disposed at one end of the ruler 101, and the measuring jaw 102 is provided with a measuring portion 1021 for measuring a distance between flange bolt holes. And the aperture go-no-go gauge 2 is a convex structure arranged on one side surface of the ruler body 1, and at least part of the convex structure can be fittingly inserted into the flange bolt hole with the aperture allowed to be the minimum aperture so as to form a detection structure of the aperture of the flange bolt hole. Specifically, the allowable minimum aperture is the minimum diameter size of the circular hole of the bolt hole through which the mounting screw can pass when the flange bolt hole is designed, and when the aperture of the flange bolt hole is smaller than the allowable minimum aperture, the original adaptive screw cannot pass through the flange bolt hole, so that the effective installation of the air duct cannot be realized. In this embodiment, the adaptively means: the outer contour size of the convex structure is matched with the minimum allowable aperture of the flange bolt hole, and precisely, when the aperture go-no go gauge 2 is a triangular prism, quadrangular prism, hexagonal prism or other straight column structure, the diameter of the circumscribed circle of the orthographic projection pattern of the triangular surface, or the quadrangular surface, or the hexagonal surface on the side surface of the ruler body 1 is equal to the minimum allowable aperture, that is, the aperture go-no go gauge 2 can be inserted into the flange bolt hole with the minimum allowable aperture, and if the aperture of the flange bolt hole is smaller than the minimum allowable aperture, the aperture go-no go gauge 2 cannot be inserted into the flange bolt hole. During detection, the aperture stop gauge 2 is inserted by aligning to the flange bolt hole, and if the aperture stop gauge can be inserted, the aperture of the flange bolt hole is larger than or equal to the allowable minimum aperture; if the hole diameter of the flange bolt hole is not smaller than the allowable minimum hole diameter, the hole diameter needs to be checked whether the drill bit for punching meets the standard or not, and timely reworking is carried out.
Preferably, in order to optimize the detection of the flange bolt holes by the aperture go-no-go gauge 2 and avoid scratching the inner walls of the flange bolt holes, the aperture go-no-go gauge 2 is a cylindrical protruding structure arranged on one side surface of the ruler body 1 and can be better adapted to the shapes of the flange bolt holes, and the aperture of the flange bolt holes can be detected more conveniently.
Preferably, in order to further improve the tightness of the air duct during installation, and avoid the situation that the flange bolt holes are too large and additional gaskets need to be added for assembly, the allowable maximum hole diameter of the flange bolt holes is generally existed during assembly design. In this embodiment, a flange member 3 is sleeved on an end of the aperture go-no-go gauge 2 close to the blade 1, the flange member 3 is also preferably a cylinder structure, and at least a part of the flange member 3 can be fittingly inserted into a flange bolt hole with an aperture allowing the largest aperture, so that the aperture go-no-go gauge 2 and the flange member 3 jointly form a detection structure of the aperture of the flange bolt hole. Specifically, the method comprises the following steps: the flange member 3 in this embodiment can be fittingly inserted into a flange bolt hole having a hole diameter allowing the largest hole diameter: referring to the above-mentioned aperture go-no-go gauge 2, the circumscribed circle diameter of the orthographic projection pattern of the flange piece 3 on the side surface of the blade 1 is equal to the allowable maximum aperture of the flange bolt hole, so that the flange piece 3 can be inserted into the flange bolt hole with the allowable maximum aperture just well. Further, in order to improve the integrity of the detection tool, the aperture no-go gauge 2 and the flange member 3 are of an integrally molded structure.
Preferably, in order to avoid obstructing the detection tool from measuring the pitch of the flange bolt holes, the aperture stop gauge 2 is arranged on one side surface of the ruler body 1 with the measuring jaw scale 1022. Simultaneously, the detection instrument of this embodiment can adopt galvanized steel sheet or corrosion resistant plate integrated into one piece to make to match different tuber pipe materials. Specifically, the measuring jaw 102, the straight ruler 101 and the aperture no-go gauge 2 together form a whole, wherein the measuring jaw 102 and the straight ruler 101 can be formed by scribing, cutting and cutting on a galvanized steel plate or a stainless steel plate according to fig. 1, and the aperture no-go gauge 2 can be formed by stamping on the galvanized steel plate or the stainless steel plate. And finally, chamfering, grinding, polishing and deburring are carried out on the cut surface, so that the personnel injury in the detection process is prevented, and the integral attractiveness is kept. In order to visually indicate the size of the aperture go-no-go gauge 2 and facilitate the detection personnel to select a suitable detection tool, in this embodiment, an identification scale 104 is arranged on a side surface of the ruler body 1 where the aperture go-no-go gauge 2 is installed, and the identification scale 104 is the size identification of the allowable minimum aperture.
The operation steps of the specific embodiment of the utility model are as follows:
1) after welding forming and drilling are completed in flange assembly, selecting a detection tool with a proper aperture go-no-go gauge 2 according to the aperture of a flange bolt hole of the flange specification for inspection;
2) aligning the aperture go-no-go gauge 2 to a flange bolt hole to be detected, and trying to insert the aperture go-no-go gauge 2 into the flange bolt hole;
3) observing whether the aperture stop gauge 2 can be inserted into the flange bolt hole or not, if so, continuing inserting, and trying to insert the flange piece 3 into the flange bolt hole; if the hole diameter of the flange bolt hole is not small, the hole diameter needs to be detected whether the drilling tool meets the standard or not, and rework is carried out in time;
4) observing whether the flange piece 3 can be inserted into the flange bolt hole, if so, indicating that the aperture of the flange bolt hole is possibly too large, further accurately detecting the aperture of the flange bolt hole, and detecting whether a drilling tool meets the standard; if not, the flange bolt hole is in accordance with the design standard;
5) and (5) repeating the steps 2 to 4 until all bolt hole checks are finished.
As the second embodiment of the present invention, based on the first embodiment, in actual use, since the sizes of the air duct flanges are different, the diameters of the flange bolt holes thereon are also different, and if one detection tool is provided for each size of flange bolt hole, the cost is too high. Therefore, in the embodiment, the aperture no-go gauge 2 is connected to the blade 1 through a detachable connection structure, such as a snap connection structure, a pin connection structure, a threaded connection structure, and the like. When the sizes of the flange bolt holes with different apertures need to be detected, only the aperture go-no-go gauge 2 with different sizes needs to be replaced on the ruler body 1.
Preferably, the detachable connection structure in this embodiment is preferably a threaded connection structure to facilitate detachment while ensuring structural stability. In order to avoid the screw structure from obstructing the detection tool to measure the hole pitch of the flange bolt hole, the threaded connection structure in this embodiment includes a screw part 103 disposed on one side surface of the blade 1, and a connection groove 201 disposed on the aperture go-no-go gauge 2 and adapted to the screw part 103 to form the threaded connection structure.
In the description herein, references to the description of the terms "embodiment," "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A tuber pipe flange bolt hole size detection instrument includes:
the ruler comprises a ruler body (1), wherein the ruler body (1) comprises a ruler (101) with the length equal to the maximum distance between adjacent bolt holes and a measuring claw (102) arranged at one end of the ruler (101), and a measuring part (1021) for measuring the distance between the bolt holes of the flange is arranged on the measuring claw (102); the method is characterized in that: also includes:
the hole diameter go-no-go gauge (2) is a protruding structure arranged on one side face of the ruler body (1), and at least part of the protruding structure can be fittingly inserted into a flange bolt hole with the hole diameter allowed to be the minimum hole diameter to form a detection structure of the hole diameter of the flange bolt hole.
2. An air hose flange bolt hole size detection tool according to claim 1, characterized in that: the aperture go-no-go gauge (2) is a cylindrical protruding structure arranged on one side face of the ruler body (1), and the diameter of the circular face of the aperture go-no-go gauge is equal to the allowable minimum aperture of a flange bolt hole.
3. An air duct flange bolt hole size detection tool as defined in claim 2, wherein: the hole diameter go-no-go gauge (2) is close to one pot head of blade (1) is equipped with flange spare (3), at least part flange spare (3) can insert the hole diameter for allowing in the flange bolt hole of maximum hole diameter with the adaptation, make hole diameter go-no-go gauge (2) with flange spare (3) constitute the detection structure in flange bolt hole diameter jointly.
4. An air hose flange bolt hole size detection tool according to claim 3, characterized in that: the aperture go-no-go gauge (2) and the flange piece (3) are of an integrally formed structure.
5. The air duct flange bolt hole size detection tool of claim 1, wherein: the aperture go-no-go gauge (2) is arranged on one side surface of the ruler body (1) with the measuring jaw scales (1022).
6. The air duct flange bolt hole size detection tool according to any one of claims 1 to 5, characterized in that: the aperture go-no go gauge (2) is connected to the ruler body (1) through a detachable connecting structure.
7. An air hose flange bolt hole size detection tool according to claim 6, characterized in that: the detachable connecting structure is a threaded connecting structure and comprises a screw rod part (103) arranged on one side surface of the ruler body (1) and a connecting groove (201) which is arranged on the aperture go-no go gauge (2) and is matched with the screw rod part (103) to form the threaded connecting structure.
8. The air duct flange bolt hole size detection tool according to any one of claims 1 to 5, characterized in that: and one side surface of the ruler body (1) provided with the aperture go-no-go gauge (2) is provided with identification scales (104), and the identification scales (104) are the size identification of the allowable minimum aperture.
9. An air hose flange bolt hole size detection tool according to claim 8, characterized in that: the size detection tool for the air pipe flange bolt hole is designed by integrally forming galvanized steel plates.
10. An air hose flange bolt hole size detection tool according to claim 8, characterized in that: the size detection tool for the air pipe flange bolt hole is designed by integrally forming a stainless steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220500312.9U CN216869404U (en) | 2022-03-09 | 2022-03-09 | Size detection tool for air pipe flange bolt hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220500312.9U CN216869404U (en) | 2022-03-09 | 2022-03-09 | Size detection tool for air pipe flange bolt hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216869404U true CN216869404U (en) | 2022-07-01 |
Family
ID=82161809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220500312.9U Active CN216869404U (en) | 2022-03-09 | 2022-03-09 | Size detection tool for air pipe flange bolt hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216869404U (en) |
-
2022
- 2022-03-09 CN CN202220500312.9U patent/CN216869404U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216869404U (en) | Size detection tool for air pipe flange bolt hole | |
| CN110081792B (en) | Method for measuring puckered mouth at end of steel pipe or radial deviation of outer wall of steel pipe | |
| CN111098996A (en) | Installation process of telescopic propeller of ship | |
| CN217424168U (en) | Multifunctional detection and drawing tool for repairing airplane structure | |
| CN114838638B (en) | Gauge and measuring method for measuring position accuracy of trimming line of stamped part | |
| CN216938260U (en) | Position teaching tool and robot puncture riveting system | |
| CN215572777U (en) | Aircraft skin curved surface normal direction hole position degree detects frock | |
| CN211953931U (en) | Measuring tool for detecting moving blade with water outlet hole | |
| CN112762794A (en) | A examine utensil for detecting dredge pump impeller blade import | |
| KR20120074413A (en) | Apparatus for measuring cross section of adjusting pipe installation for butt welding | |
| CN219284171U (en) | Inspection device capable of adjusting and inspecting machining precision of round tube | |
| CN214223930U (en) | A examine utensil for detecting dredge pump impeller blade import | |
| CN217452808U (en) | Flexible welding tool platform for three-way pipeline | |
| CN221223590U (en) | Channel gauge for measuring passenger car channel | |
| CN214407228U (en) | Automobile chassis connecting piece inspection device | |
| CN212825081U (en) | Auxiliary alignment tool for mounting driving device | |
| CN214583158U (en) | Ultra-large type seal head appearance detection tool | |
| CN214950974U (en) | Basin tap position degree detection tool | |
| CN220304417U (en) | New forms of energy water injection well choke examines utensil | |
| CN112902793B (en) | General type half shell air hole length gauge assembly | |
| CN220250929U (en) | Boiler inspection return bend protractor | |
| CN221325300U (en) | Quick gauge for position of base connecting sleeve of tower crane | |
| CN219301460U (en) | Gauge for rapidly measuring turbine stationary blade | |
| CN219714333U (en) | Auxiliary jig for measuring wall thickness of special-shaped tube and device for measuring wall thickness of special-shaped tube | |
| CN209706720U (en) | A kind of air duct flange bolt hole is away from detection instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |